Question 1

What sand is used in concrete?

Accepted Answer

A washed fine aggregate with silt and clay removed and a consistent grading, commonly specified with reference to AS 2758.1. Clean, consistently graded sand gives predictable water demand, workability and strength.

Question 2

Why is coarse sand better for concrete?

Accepted Answer

A coarser fine aggregate needs less cement paste to coat its grains, producing a more economical mix, and sub-rounded grains improve workability at a given water content.

Question 3

Do you supply sand for asphalt?

Accepted Answer

Yes. Washed, consistently graded sand is supplied as fine aggregate to asphalt producers.

Question 4

Can you supply precast concrete manufacturers?

Accepted Answer

Yes. Precast yards producing panels, pipes and civil products are supplied in bulk from Talgai.

Question 5

Where do you deliver concrete sand?

Accepted Answer

Across South East Queensland, including Warwick, Toowoomba, Ipswich, Dalby, Brisbane and the Gold Coast.

Question 6

What is fine aggregate?

Accepted Answer

The sand fraction of a concrete or asphalt mix, generally material passing a 4.75 mm sieve, as distinct from the coarse aggregate.

Question 7

Does washed sand meet AS 2758.1?

Accepted Answer

AS 2758.1 is the standard commonly referenced for fine aggregate for concrete. Washing and screening are how a natural sand is brought within its limits. Contact us to discuss testing for your mix design.

Question 8

Do you supply dry sand for bagged concrete and mortar products?

Accepted Answer

Yes. Kiln-dried Specialty Sands sized from 0.3 mm to 6 mm are supplied for dry-mix and pre-blended products.

Question 9

How consistent is the sand from delivery to delivery?

Accepted Answer

All product is washed, screened and stockpiled on site from a single deposit, so grading and fines content are held consistent across deliveries, which is what a batching plant needs to keep its mix designs stable.

Concrete & Asphalt

Overview